Rotary brush.



J. H. CARY.

ROTARY BRUSH.

APPLICATION FILED JULY 22, 1916.

Patented'June 26, 1917.

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JAMES H. CARY, OF MEMPHIS, TENNESSEE.

ROTARY BRUSH.

Specification of Letters Patent.

Patented June 26, 19117.

Application filed July 22, 1916. Serial No. 110,633.

To all whom it may concern:

Be it known that I, JAMES H. GARY, a citizen of the United States,residing at Memphis, in the county of Shelby and State of Tennessee,have invented certain new and useful Improvements in Rotary Brushes, ofwhich the following is a specification.

My invention relates to certain new and useful improvements in rotarybrushes, and the invention consists, essentially, of a brush having itscircumference provided with a series of parallel longitudinallyextending brush backs or strips provided with bristles, which. stand atan angle or tangential to the circumference of the brush, said brushbacks being separated from each other to form intermediate spaces forthe free admission and circulation of air into and through the brush.

The invention further consists of the parts and the constructions andcombinations of parts which I will hereinafter describe and claim.

In the drawing forming part of this specification the figure representsa cross-sectional view of a rotary brush embodying my invention.

In carrying out the invention above named, I form the brush of suitableheads, which are made of wood or of any desired material andproportions, and which heads may be reinforced or strengthened by aflange or disk, E, being bolted to the central portion thereof, saiddisk having a cen tral opening, E, for the reception of a suitableshaft, by which the brush may be rotated.

The circumference or edge of each head employed in. the construction ofthe brush, is recessed to a substantial depth to form the inclinedwalls, 2, 8, which are arranged one at right-angles to the other, saidrecesses being provided for the reception of the series of similarlyshaped longitudinally extending brush-backs, or sticks, 79, from therear edges of which suitable bristles project at an angle so as to standat a tangent to the circumference of the brush, these bristles pointingbackwardly or oppositely to the direction in which the brush is to berotated, and said bristles serving to impart a wiping effect against anysurface or object with which they contact.

The brush-backs are by reason of the aforesaid recesses formed in theheads spaced from each other equidistant around the heads, and a clearunobstructed space, (Z, is thus expressly provided between adjacentbrush-backs, or sticks, and leading into the hollow interior of thebrush so as to permit the free entry and circulation of air into andtransversely through the brush, a condition which is of importance insome arts, and particularly where the brush is used in connection withcotton-gin-feeders, as for instance, shown and described in my copendingapplication filed July 6, 1916, Ser. No. 107,766, where such a brush asI have described is illustrated in association with a toothed drum orcylinder and a current of air is induced through the brush for thepurpose of carrying off any hull-particles which may be mixed withseed-cotton. However, my improved brush is not limited to this art, orto any particular art, it being my intention to employ it wherever itsconstruction may be found useful.

A brush such as has been described and one where the brush has itsbristles or brush matter arranged at an angle of say about 45 degrees tothe plane in which the brush rotates, is important in the cottonindustry, because such a brush does not gin the cotton or damage thestaple in taking it off the toothed cylinders, with which cotton ginsare usually supplied.

The brush heads or sticks may have an outer face provided with a metalreinforcing plate, C, which extends throughout the length of the head orstick and through this plate and the stick and into the heads of thebrush suitable fastenings as screws or nails, 0, may pass to secure thesticks firmly in place.

Also, if desired, I may place inside the brush on the shaft, on whichthe brush is mounted suitable floating rings, g, or the like for thepurpose of keeping lint from wrapping around the shaft, if the brush isused in cotton gin feeders or similar machines, as before mentioned.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is 1. A rotary brush comprising suitable headsand brush-backs secured thereto in spaced relation, said brush-backshaving two adjacent angular faces, and provided with projectingbristles, said heads having recesses in their edges with two walls onlyfor receiving the corresponding faces of the bruslhbacks, the spacesbetween adjacent backs permitting an air current to be dischargedtransversely through the brush.

2. A rotary brush comprising suitable heads and brush-backs securedthereto in spaced relation, said brush-backs having two adjacent angularfaces, and provided with projecting bristles, said heads having recessesin their edges with two walls only for receiving the corresponding facesof the be discharged'transverely through the brush,

plates extending longitudinally along the outer faces of the backs, andfastening devices for securing the backs to said heads. 15

In testimony whereof I aflix my signature.

JAMESH. GARY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

